Dòng Nội dung
1
2
Expanding tactics for listening / Jack C. Richards.
New York : Oxford University Press, 1997
vii, 72 p. : ill. ; 28 cm.



3
Real 4 : Listening & speaking with answers / Miles Craven
United Kingdom : Cambridge university press, 2008
111p : ill. ; 27 cm.2 CD.